The world does not need another note-taking app. Or does it? If you search for 'note-taking' today, you'll find the old guard like Evernote and Google Keep, alongside modern giants like Notion and Obsidian. It seems everyone is building a 'personal project' in this space because we all want to customize our digital lives. Each one promises to be the 'second brain' that finally organizes your life—
You have probably seen a file named “go.sum” in almost every Go project you have worked on. You may have even seen it change every time you run “go mod tidy”. But do you actually know what it does? It is one of those files that works silently in the background, and some developers never stop to think about it. The “go.sum” file is one of those files you never really interact with directly, but it